Macao First flight " Macao - Aparri - Manila " by the spanish aviator Gallarza with a 35 avos franking cancelled " Macau 10.5.26 " on cover to Manila / Filipinas / Philippines .The enveloppe shows the signatures of both aviators and the special postmark " raid Madrid Manila " on the front and a different one on the reverse .One of the rarest first flights of Macao with only 59 carried . Muller #1